Transcript for Trayvon Martin's Father Delivers an Emotional Appeal on Capitol Hil

Two very different scenes unfolding in the trayvon martin case. An emotional plea on capitol hill today from his father speaking from the heart saying he wished he was with his son walking that night. At the same time george zimmerman acquitted of killing the unarmed team, his attorneys were supposed to have a press conference with the family that he just saved in a car accident. But the family didn't show up. Reporter: They were the words of a father channelling anguish into action on capitol hill. I vow to do everything in my power not to give up the fight for him. Not only to fight for trayvon but to fight for so many other young black and brown boys of this country. Reporter: Ten days after george zimmerman was acquitted of murdering 17-year-old trayvon martin, his father, tracy martin, made the opening remarks at the first ever meeting of the congressional caucus on black men and boys. Martin, a truck driver by profession has appeared in multiple interviews since the july 13th verdict. George zimmerman had all but disappeared until last week when police say he happened upon an suv that rolled over and held a family of four escape the vehicle. Witnesses called 911. There was smoke and other people were starting to rush towards the vehicles. Reporter: Zimmerman lawyer acknowledged the incident was consequence dental but the family backed out. They are frightened, worried, literally trembling voices. Reporter: One man trying to keep the spotlight on his son, the other in hiding. Matt gutman, abc news, orlando.

This transcript has been automatically generated and may not be 100% accurate.

{"id":19765355,"title":"Trayvon Martin's Father Delivers an Emotional Appeal on Capitol Hil","duration":"1:44","description":"Tracy Martin describes his experiences of growing up black in America.","url":"/WNT/video/trayvon-martins-father-delivers-emotional-appeal-capitol-hill-19765355","section":"WNT","mediaType":"default"}